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$.getJSON()方法采用JSONP方案实现跨域请求，其使用方式为【】。
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举一反三
【多选题】重力式货架的缺点是（）。
A.
只适用于大批量少品种的配送中心使用
B.
货物进出库作业时，叉车或堆垛机的行程最短
C.
投资成本高
D.
对托盘及货架的加工技术要求高
E.
绝对保证货物的先进先出
【多选题】重力式货架的缺点是( )
A.
适用于大批量、少品种的配送中心使用
B.
货物进出库作业时，叉车或堆垛机的行程最短
C.
投资成本高
D.
对托盘及货架的加工技术要求高
E.
绝对保证货物的先进先出
【简答题】(4分) 某化学小组围绕燃烧与灭火的主题开展了相关活动。请你参与完成： (1)从图一中观察到的现象及所得到结论正确的是 。 A．实验中烧杯里的热水只起提高温度的作用 B．水下白磷未燃烧是由于没有与氧气接触 C．实验不能比较白磷和红磷的着火点高低 D．实验说明可燃物燃烧时，温度必须达到着火点或与氧气接触 (2)改进后的装置（如图二）与图一相比，其优点是 。欲使图二中的红磷着火，可将试管从水中取出并 ...
【简答题】阅读理解 I first went to Harrow in the summer term. The school had the biggest swimming pool I had even seen. It was a good joke to come up behind a naked boy, and push him into the pool. I made quite a h...
【简答题】I first went to Harrow in the summer term. The school had the biggest swimming pool I had ever seen. It was a good joke to come up behind a naked boy, and push him into the pool. I made quite a habit ...
【简答题】阅读理解 I first went to Harrow in the summer term. The school had the biggest swimming pool I had ever seen. It was a good joke to come up behind a naked boy, and push him into the pool. I made quite a h...
【简答题】Taiwan is the biggest i ________ in China.(答案写完整单词,含第一个字母)
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